import java.util.Scanner;

public class Text {
    public static double maxDouble(double a,double b,double c) {
        double tmp=a>b?a:b;
        return tmp>c?tmp:c;
    }
        public static int maxInt(int a,int b) {
        return a>b?a:b;
    }
    public static void main(String[] args) {
        System.out.println(maxInt(13,25));
        System.out.println(maxDouble(2.3,4.5,3.8));
    }
    public static int fanc(int a,int b) {
        return a+b;
    }

    public static double fanc(double a,double b,double c) {
        return a+b+c;
    }

    public static void main8(String[] args) {
        System.out.println(fanc(1,2));
        System.out.println(fanc(1.1,1.2,1.3));
    }

    public static int max2(int a,int b){
        return a>b?a:b;
    }
    public static int max3(int a,int b,int c){
        return max2(max2(a,b),c);
    }
    public static void main6(String[] args) {
        System.out.println(max3(1, 2, 34));
    }
    public static void main5(String[] args) {
        Scanner scan=new Scanner(System.in);
        int n= scan.nextInt();
        int i=0;
        int j=0;
        for (i = 1; i <= n; i++) {
            for (j = 1; j <= i; j++) {
                System.out.print(i+"*"+j+"="+i*j+" ");
            }
            System.out.println();
        }
    }
    public static void main4(String[] args) {
        Scanner scan=new Scanner(System.in);
        int count=3;
        while(count!=0){
            String paseword=scan.nextLine();
            if(paseword.equals("123456")){
                System.out.println("密码正确");
                break;
            }else{
                count--;
                System.out.println("密码错误,你还有"+count+"次机会");
                if(count==0){
                    return ;
                }
            }
        }
    }
    public static void func(int n){
        if(n<10){
            System.out.print(n+" ");
            return ;
        }
        func(n/10);
        System.out.print(n%10+" ");

    }
    public static void main2(String[] args) {
        func(123);
    }

    public static void main3(String[] args) {
        int n=123;
        while(n!=0){
            System.out.print(n%10+" ");
            n/=10;
        }
    }
    public static void main1(String[] args) {
        double sum=0;
        int flg=1;
        for (int i = 1; i <= 100; i++) {
            sum+=1.0/i*flg;
            flg=-flg;
        }
        System.out.println(sum);
    }
}
